public function execute(\Magento\Framework\Event\Observer $observer)
    {
        $order = $observer -> getOrder();
        //$freedomApiResponse = $this -> orderApiCaller -> placeOrder($order);
        $body = '{"OrderID":37441,"FreedomOrderID":30310140,"FreedomOnlineOrderID":4762075,"TransactionId":21815384,"Status":"SUCCESS","ErrorMessage":"","Result":null,"StatusCode":"OK","Message":null}';
        $freedomApiResponse = new DataObject(json_decode($body, true));
        if($freedomApiResponse -> getFreedomTransactionId())
        {
            $order -> setFreedomTransactionId($freedomApiResponse -> getFreedomTransactionId());
        }
    }